期刊
BIORESOURCE TECHNOLOGY
卷 247, 期 -, 页码 226-233出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.09.021
关键词
Microbial electrolysis cell; Anaerobic digestion; Food waste; Methane production; Microbial community
资金
- Human Resource Training Program for Regional Innovation and Creativity through the Ministry of Education
- National Research Foundation of Korea [NRF-2015H1C1A1035673]
A microbial electrolysis cell (MEC) is a promising technology for enhancing biogas production from an anaerobic digestion (AD) reactor. In this study, the effects of the MEC on the rate of methane production from food waste were examined by comparing an AD reactor with an AD reactor combined with a MEC (AD + MEC). The use of the MEC accelerated methane production and stabilization via rapid organic oxidation and rapid methanogenesis. Over the total experimental period, the methane production rate and stabilization time of the AD + MEC reactor were approximately 1.7 and 4.0 times faster than those of the AD reactor. Interestingly however, at the final steady state, the methane yields of both the reactors were similar to the theoretical maximum methane yield. Based on these results, the MEC did not increase the methane yield over the theoretical value, but accelerated methane production and stabilization by bioelectrochemical reactions.
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